Image: Madeline Mathews
Madeline Mathews Thomas
1001 Fannin Street
Suite 1800
Houston, Texas 77002


Maddie has a diverse transactional practice, which includes onshore and offshore oil and gas projects, real property acquisitions and divestitures, various stages of business transactions, and intellectual property protections.


Maddie has experience drafting and negotiating oil and gas leases, joint operating agreements, assignments, surface use and access agreements, easements, midstream agreements, production handling agreements, and other transactional documents.  She has represented a variety of clients, from landowners to major producers, in all phases of energy exploration, development, and production, ranging from title matters to complex litigation. 

Maddie is familiar with the overlap between energy law and environmental law, specifically as it pertains to carbon capture and sequestration and renewable energy sources.  She is also knowledgeable about federal and state regulatory issues that pertain to the energy industry and has prior trial experience. 


Maddie has counseled clients on a variety of corporate issues including entity formation, purchase and sale agreements, mergers, winding down and dissolution. She has experience with due diligence, corporate documents, bankruptcy and re-organization proceedings, start-up business practices, and secured transactions. Maddie also works on a range of intellectual property matters, including trademark protections and licensing.

Real Estate:

Maddie represents both buyers and sellers throughout the deal process, handling title and survey issues, deeds, leases, reservations, exchanges, and closing logistics for companies, individuals, landlords, and commercial tenants.



  • Houston Bar Association – Oil, Gas, and Mineral Law Section – Chair-Elect 2021-2022; Treasurer, 2020-2021; Secretary, 2019-2020
  • Houston Bar Association – Real Estate Law Section – Council Member, 2021-2022, 2020-2021
  • Houston Bar Association – Mergers & Acquisitions Law Section
  • State Bar of Texas – Oil, Gas, and Energy Resources Law Section
  • State Bar of Texas –  Business Law Section
  • American Bar Association – Business Law Section
  • Women's Energy Network – Houston Chapter
  • Greater Houston Partnership – Women's Business Alliance
  • Association for Corporate Growth Houston
  • Renewable Energy Alliance – Houston


  • St. John's School, Class Representative
  • Pi Beta Phi Alumnae Association
  • Texas Children’s Hospital, Online Advocate
  • American MENSA
  • Texas Exes Life Member

After Hours

"In my free time, I enjoy traveling, watching old movies with my husband, and loving on my newborn baby!"